I have no trouble putting books on my N7. I already had my epub's in calibre. I keep my pdf books in a separate folder. To transfer epub's I have the choice of:
- Switching on the calibre server and then connecting with the calibre bookmark in my chrome browser to browse my calibre libraries; or
- Using airdroid to move the file from my computer to my N7
For pdf's I use the Airdroid app to transfer files.
For reading epub's I use FB Reader and for pdf's I use Repligo reader. Both support dictionary lookups.
I don't use the book reading app that comes with the N7.
As for likes:
- battery life
- speed
- screen resolution
Dislikes:
- Having to use the side button to unlock the screen
- It's heavier than a Kobo (I know, it's also much more powerful)
- No SD card slot